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Improve the disallowedRequisites error message to actually show the requisite chain #626

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opened 2025-01-17 21:40:06 +00:00 by jade · 2 comments
jade commented 2025-01-17 21:40:06 +00:00
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There's a CppNix PR here: https://github.com/NixOS/nix/pull/10877

There's a CppNix PR here: https://github.com/NixOS/nix/pull/10877
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jade added this to the Error reporting project 2025-01-17 21:40:11 +00:00
ma27 self-assigned this 2025-06-27 17:11:23 +00:00
ma27 commented 2025-06-27 17:11:40 +00:00
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I have a working version cherry-picked to my local HEAD. Looking into improving the output a bit and then I'd file a CL.

I have a working version cherry-picked to my local HEAD. Looking into improving the output a bit and then I'd file a CL.
lix-bot commented 2025-06-29 19:01:22 +00:00
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This issue was mentioned on Gerrit on the following CLs:

  • commit message in cl/3530 ("libstore: show forbidden chain(s) to forbidden path from disallowedRequisites")
<!-- GERRIT_LINKBOT: {"cls": [{"backlink": "https://gerrit.lix.systems/c/lix/+/3530", "number": 3530, "kind": "commit message"}], "cl_meta": {"3530": {"change_title": "libstore: show forbidden chain(s) to forbidden path from disallowedRequisites"}}} --> This issue was mentioned on Gerrit on the following CLs: * commit message in [cl/3530](https://gerrit.lix.systems/c/lix/+/3530) ("libstore: show forbidden chain(s) to forbidden path from disallowedRequisites")
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Affects/CppNix

Probably affects CppNix. This is a best-effort tag for troubles in old code; it exists to inform the CppNix team about problems they might care about also.

  
Affects/Nightly

Found in Lix nightly.

  
Affects/Only nightly

Tag for regressions in Lix nightly. We intend to fix all of these prior to releases.

  
Affects/Stable

Affects the stable release of Lix. Usually such issues affect nightly too but there is no guarantee.

  
Area/build-packaging

regarding the building or packaging of Lix itself

  
Area/cli

The command line interface of Lix

  
Area/evaluator

libexpr and anything else related to the evaluation of Nix expressions

  
Area/fetching

Fetching sources or other materials from the World Wide Web in Lix

  
Area/flakes

   
Area/language

language design, features, extensions, etc

  
Area/lix ci

Lix's own CI and deployment pipeline

  
Area/nix-eval-jobs

nix-eval-jobs for Lix

  
Area/profiles

profiles: nix-env, nix profile, and installer flavors all alike

  
Area/protocol

The protocol, used for communicating between the client and the daemon

  
Area/releng

Release engineering

  
Area/remote-builds

remote builds

  
Area/repl

nix repl

  
Area/repl/debugger

The --debugger that brings up a Lix repl

  
Area/store

libstore and anything else relating to the Nix store

  
bug

it's a bug

  
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contributors
This issue might require some context that isn't written down. It might be possible to handle as a person who already worked on this area.

  
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This issue contains all the necessary information to do a drive-by contribution: that is, you don't have to talk with anyone at all to successfully solve it!

  
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maintainers
This issue requires a lot of know-how. Attention from maintainers is needed to proceed.

  
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RFD
This issue needs discussion from multiple maintainers and interested parties: it's a Request For Discussion.

  
crash 💥

Lix crashes (possibly bad error handling)

  
Cross Compilation

   
devx

development experience issues

  
docs

requires or is about documentation changes

  
Downstream Dependents

regarding an external tool's usage with Lix (e.g. nix-eval-jobs)

  
E/easy

bug is relatively simple and could simply be fixed with some minor effort

  
E/hard

this issue should probably be solved with close involvement of an expert

  
E/help wanted

maintainers may not get to this soon, but we want it fixed

  
E/reproducible

This bug is reproducible and obvious.

  
E/requires rearchitecture

this bug cannot be fixed properly without fixing a known architectural flaw

  
imported

Issue imported from upstream nix (please do not remove this label, it will cause dupes if import is rerun)

  
Language/Bash

   
Language/C++

   
Language/NixLang

   
Language/Python

   
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Needs Langver

We can't get to this until we implement language versioning

  
OS/Linux

Affects specifically Lix on Linux

  
OS/macOS

Affects specifically Lix on macOS

  
performance

make lix go faster

  
regression

This is a regression since some previous version of Lix

  
release-blocker

Blocks public release

  
stability

Fixing this makes the software more stable

  
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Blocked on something

  
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not our bug, duplicate, similar

  
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closed but should maybe look at later (generally with S-wontfix)

  
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wontfix
We chose not to change this (see issue comments for more detail).

  
testing

Tests that should be added

  
testing/flakey

Tests that are unreliable/flakey (not to be confused with flakes that test)

  
Topic/Large Scale Installations

Large scale installations of Lix, e.g. NixOS Hydra, Lix CI, big corporate installations etc.

  
ux

makes the user experience better :)

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Reference: lix-project/lix#626
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